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【单选题】
以下属于球面坐标系的是 ____________ 。 A 、空间直角坐标系; B 、大地坐标系; C 、独立平面直角坐标系; D 、数学坐标系。
A.
、空间直角坐标系
B.
、大地坐标系
C.
、独立平面直角坐标系
D.
、数学坐标系
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【单选题】---How do your parents usually go to work? ---My mother usually goes to work _________  bus while my father ________ a bike to work.
A.
takes, rides
B.
take, by
C.
by, by
D.
by, rides
查看完整题目与答案
【单选题】•129:maritime safety information is promulgate via satellite through( )
A.
AMVER
B.
SafetyNET.
C.
NAVTEX
D.
Inmarsat-M MES.
查看完整题目与答案
【单选题】I can not ______ you on my radar.
A.
locate
B.
look for
C.
watch
D.
look out
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【判断题】乙基溴化镁在无水乙醚溶剂中与甲醛加成,再经稀酸条件下水解,产物是2-丙醇。
A.
正确
B.
错误
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【简答题】My father ______ (乘) the underground to work every day. My father goes to work______ ______(骑自行车).
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【单选题】A radio link between a transmitting earth station and a receiving earth station through one satellite, which comprises one uplink and one downlink, is named a()
A.
upper link
B.
radio link
C.
down link
D.
satellite link
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【单选题】Satellite radio generates revenues primarily through ________________.
A.
advertising
B.
contributions
C.
subscriptions
D.
government subsidies
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【单选题】A radio link between a transmitting earth station and a receiving earth station through one satellite is named a（）.
A.
Radio link
B.
Space segment
C.
Satellite link
D.
upper link
查看完整题目与答案
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance______?
A.
used
B.
vailable
C.
in yse
D.
can be used
查看完整题目与答案
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance______?
A.
used
B.
available
C.
in yse
D.
can be used
查看完整题目与答案
相关题目：
【单选题】---How do your parents usually go to work? ---My mother usually goes to work _________  bus while my father ________ a bike to work.
A.
takes, rides
B.
take, by
C.
by, by
D.
by, rides
查看完整题目与答案
【单选题】•129:maritime safety information is promulgate via satellite through( )
A.
AMVER
B.
SafetyNET.
C.
NAVTEX
D.
Inmarsat-M MES.
查看完整题目与答案
【单选题】I can not ______ you on my radar.
A.
locate
B.
look for
C.
watch
D.
look out
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【判断题】乙基溴化镁在无水乙醚溶剂中与甲醛加成,再经稀酸条件下水解,产物是2-丙醇。
A.
正确
B.
错误
查看完整题目与答案
【简答题】My father ______ (乘) the underground to work every day. My father goes to work______ ______(骑自行车).
查看完整题目与答案
【单选题】A radio link between a transmitting earth station and a receiving earth station through one satellite, which comprises one uplink and one downlink, is named a()
A.
upper link
B.
radio link
C.
down link
D.
satellite link
查看完整题目与答案
【单选题】Satellite radio generates revenues primarily through ________________.
A.
advertising
B.
contributions
C.
subscriptions
D.
government subsidies
查看完整题目与答案
【单选题】A radio link between a transmitting earth station and a receiving earth station through one satellite is named a（）.
A.
Radio link
B.
Space segment
C.
Satellite link
D.
upper link
查看完整题目与答案
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance______?
A.
used
B.
vailable
C.
in yse
D.
can be used
查看完整题目与答案
【单选题】My radar is not working. I require shore based radar assistance. Is shore based radar assistance______?
A.
used
B.
available
C.
in yse
D.
can be used
查看完整题目与答案